High Velocity Poritng is a techniques to enhance the flow of air in the fuel intake chamber, so that when the machine into a super fast round and the open-close valve is shorter, the air-fuel mixture can be barged into the cylinder.

How To Build High Velocity Porting for Motor Drag Jupiter Z : porting is to patch the holes with epoxy, sliding it around 1mm to get a higher air flow and middle income line we make a cavity for the waiting zone. Ideally is, the power will be saved in the bottom-middle rounds and then struck down exhausted at Round Top.

High Velocity Porting for Motor Drag Jupiter Z

Porting Intake Valve Motor Drag Jupiter Z

4. Adjust Camshaft Original Jupiter Z into 3,5mm

Camshaft Original Noken as Yamaha Jupiter Z

Adjust into 3,5mm Noken as Jupiter Z for Motor Drag Jupiter Z

and for Last but not least install exhaust for high performance, you can use AHAU racing products for Motor Drag Jupiter Z or you can build custom exhaust in accordance with the characteristics of the machine motor drag Jupiter Z.